Japan Airlines has a new tool that shows where passengers with kids between 8 days and 2 years old are sitting.
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Other passengers can view the map before selecting their own seats, giving them a chance to find one further away - or at least emotionally prepare for the flight if one isn't available.
The airline says only passengers who book on its website can see babies on the seat map.
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Things may also get shaken up if there is an aircraft change before take-off.
The tool is already getting positive feedback from some passengers on social media.
Japan Airlines also offers several amenities to the families themselves, including bottle-warming assistance, diapers and child-friendly entertainment.